Home / 138,724,967.92-208,116,650.84-52,461,445.36

Finding the Fourth Proportional to 138,724,967.92, 208,116,650.84 and 52,461,445.36

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Solution

The fourth proportional to 138,724,967.92, 208,116,650.84 and 52,461,445.36 is: 78,703,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724,967.92 : 208,116,650.84 = 52,461,445.36 : x
  2. Step 2: Convert to fraction form
    138,724,967.92/208,116,650.84 = 52,461,445.36/x
  3. Step 3: Cross multiply
    138,724,967.92x = 208,116,650.84 × 52,461,445.36
  4. Step 4: Simplify right side
    138,724,967.92x = 10,918,100,306,548,858
  5. Step 5: Solve for x
    x = 10,918,100,306,548,858/138,724,967.92
  6. Step 6: Final answer
    x = 78,703,210.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.